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805 Union Ave

Boulder, CO 80304

3 beds
2 baths
1,200 sqft
10,633 sqft lot
$958 per sqft
1961 build
– on site

Welcome to this truly one-of-a-kind North Boulder retreat, where modern comfort meets mountain serenity. Tucked in the foothills on a fully fenced lot, this single-level gem is just one block from Wonderland Lake, Foothills Park, and trails-with Broadway and public transit two blocks away. This home provides a peaceful, picturesque location while still just minutes from Pearl Street Mall. Inside, you'll discover a thoughtfully renovated open-concept layout bathed in natural light, with warm wood floors throughout and radiant solar-heated hot water floors powered by a custom-built system and massive solar-heated water storage beneath the home. The heart of the home is the beautifully redesigned kitchen, complete with custom cabinetry, sleek countertops, stainless appliances, and a steel beam installation that allowed for expanded space and modern flow. The windows and doors perfectly frame the surrounding foothill views from nearly every room-including year-round views of Green Mountain from the primary bedroom. All three bedrooms and two three-quarter baths are located on the main floor, offering effortless single-level living. The home's excellent solar gain keeps it bright and cozy in the winter, and with owned solar panels and a battery backup providing off-grid capability, this home is as sustainable as it is stylish. Outdoor living is exceptional, with three spacious patios-two of which feature sliding pergolas for shade-ideal for entertaining or peaceful relaxation under the Colorado sky. The studio includes a 1080p projector and motorized screen. A built-in outdoor TV adds even more functionality to your al fresco gatherings. The lush garden has been lovingly cultivated over several generations and features rich, thriving soil. Exterior trim and soffits were freshly painted in 2023. This is more than just a home-it's a peaceful sanctuary that blends thoughtful design, sustainable living, and unbeatable North Boulder location.

Listing courtesy of IRES

Last checked: Checking… • Last updated Jun 9, 2025 •

MLS# 9308169 —

This home is listed in more than one place. See it here.

The Building

Year Built:

1961
New Construction:

false
Construction Materials:

Brick/Brick Veneer
Architectural Style:

Ranch
Total SqFt:

1,200 Sqft
Building Area Total:

1200
Roof:

Composition
Levels:

One
Basement:

Sump Pump
Stories:

1
Direction Faces:

South
Window Features:

Double Pane Windows
Patio And Porch Features:

Patio
Green Energy Efficient:

HVAC
Above Grade Finished Area:

1200

Interior

Interior Features:

Open Floorplan
Fireplace:

true
Fireplace Features:

Gas
Living Room Level:

Main
Kitchen Level:

Main

Room Dimensions

Living Area:

1200
Living Area Units:

Square Feet
Living Area Source:

Assessor
Living Room Area:

187
Living Room Length:

17
Living Room Width:

11
Kitchen Length:

20
Kitchen Area:

220
Kitchen Width:

11
Master Bedroom Area:

198
Master Bedroom Width:

11
Master Bedroom Length:

18
Bedroom 2 Area:

90
Bedroom 2 Length:

9
Bedroom 3 Length:

8
Bedroom 2 Width:

10
Bedroom 3 Area:

88
Bedroom 3 Width:

11

Financial & Terms

Listing Terms:

Cash

Location

Coordinates:

-105.287872, 40.053268
Latitude:

40.053268
Longitude:

-105.287872

The Property

Property Type:

Residential
Property Subtype:

Residential-Detached
Lot Features:

Gutters
Lot Size Acres:

0.24
Lot Size SqFt:

10,633 Sqft
Lot Size Area:

10633
Lot Size Units:

Square Feet
View:

Mountain(s)
Exclusions:

Seller's Personal Property, Hot Tub
Horse:

false
Fencing:

Fenced
Exterior Features:

Gas Grill
Waterfront:

false
Has Water Rights:

No

Listing Agent

Contact info:

Taxes

Tax Year:

2024
Tax Annual Amount:

$6,701

Beds

Bedrooms Total:

3
Bedroom 2 Level:

Main
Bedroom 3 Level:

Main
Master Bedroom Level:

Main

Baths

Total Baths:

2
Full Baths:

2

The Listing

Virtual Tour URL Unbranded:

https://www.youtube.com/watch?v=_ynoDwDZsa0
Special Listing Conditions:

Private Owner

Heating & Cooling

Heating:

Hot Water
Heating:

true
Cooling:

Room Air Conditioner
Cooling:

true

Utilities

Utilities:

Natural Gas Available
Gas:

Natural Gas
Electric:

Electric
Sewer:

City Sewer
Water Source:

City Water
Green Water Conservation:

Solar Domestic Hot Water
Power Production Type:

Photovoltaics

Appliances

Appliances:

Dishwasher

Schools

Elementary School:

Foothill
Middle School:

Centennial
High School:

Boulder
High School District:

Boulder Valley RE 2

The Community

Association:

false
Subdivision Name:

North Boulder
Spa:

false
Senior Community:

false

Parking

Garage Spaces:

6
Garage:

true
Garage Type:

Off Street
Attached Garage:

false
Covered Spaces:

6

Monthly cost estimate

Asking price

$1,150,000

Expense	Monthly cost
Mortgage	$6,157
Taxes	$558
Insurance	$316
Utilities	$120 See report
Total	$7,151/mo.^*
	^*This is an estimate

Explore the Area

My Commute

From

Walk Score®

Provided by WalkScore® Inc.

Bike Score®

Provided by WalkScore® Inc.

Transit Score®

Provided by WalkScore® Inc.

Soundscore™

Provided by HowLoud

Air Pollution Index

Provided by ClearlyEnergy

Max Internet Speed

Xfinity

Provided by BroadbandNow®

Sale history

Date	Event	Source	Price
6/9/25 Jun 9, 2025	Pending	IRES	$1,150,000
5/15/25 May 15, 2025	Relisted	IRES	$1,150,000
5/12/25 May 12, 2025	Pending	IRES	$1,150,000

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This house located in North Boulder, Boulder, CO 80304 is currently pending sale for $1,150,000. 805 Union Ave is a 1,200 square foot house with 3 beds and 2 baths that has been on Estately for 40 days. 805 Union Ave is in the North Boulder neighborhood of Boulder and has a WalkScore® of 45, making it car-dependent. This house is in the attendance area of Foothill Elementary School, Centennial Middle School, and Boulder High School.

Listing Courtesy of: IRES

TERMS OF USE: listing information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Information deemed reliable but not guaranteed by the MLS